The Magician is an early W. Somerset Maugham novel, originally published in 1908. In this tale, the magician Oliver Haddo, a caricature of Aleister Crowley, attempts to create life. Crowley wrote a critique of this book under the pen name Oliver Haddo, where he accused Maugham of plagiarism.

Maugham wrote The magician in London, after he had spent some time living in Paris, where he met Alister Crowley.